An 11-year veteran, Asomugha signed a one-year, $1.35 million deal with the San Francisco 49ers, but was cut Nov. 5 after appearing in just three games. He was drafted 31st overall by the Raiders in 2003.

Off the field, Asomugha is married to "Scandal" star Kerry Washington, and the couple is currently is expecting a baby.

Asomugha isn't the latest sports star to walk away while relatively young. Former Detroit Lions running back Barry Sanders walked away from the game at age 31 in 1989, while still regarded as one of the game's best players. Former New York Giants running back Tiki Barber also retired at 31 after the 2006 season to pursue a television career.

Former NFL Pro Bowl cornerback Nnamdi Asomugha is retiring. The 32-year-old spent eight seasons with the Oakland Raiders, and will retire as a member of the team where he became one of the league's top cornerbacks.